X-ray absorption spectroscopic and M�ssbauer studies of redox and cation-ordering processes in manganese ferrite

Influence of MnO2 on the sintering behavior and magnetic properties of NiFe2O4 ferrite ceramics

“…It can be seen that when sintering temperature is higher than 1158. proved in the spinel structure by Bonsdor et al [14,15]. Fe 3+ ions in A-sites are mainly substituted by Mn 2+ ions.…”

Effect of sintering temperature on structural, magnetic properties of lithium chromium ferrite

“…Among various ferrites, lithium and metal substituted lithium ferrites have been attractive structural and magnetic features that render them as a potential material for various technological applications such as, lithium batteries, recording heads, transformer cores, and noise filters [3][4][5][6][7][8][9][10][11]. The structural and magnetic properties of these ferrite systems with respect to different sintering temperature conditions have been reported by many workers [12,13].…”

Effect of doping MnO2 on magnetic properties for M-type barium ferrite

“…Based on the two reasons, Mn 2+ ions have the preference to occupy the A site, and Mn 3+ ions have the preference to occupy the B site. This has been proved in the spinel structure by Bonsdorf [25]. Hence, it can be assuming that Mn 2+ ions compel the Fe ions to displace from 4f 1 to 2b site and Mn 3+ ions impel Fe ions to displace from 2b site to 12k site, respectively.…”